<template>
	<!-- 滚动通知 -->
	<view class="l-noticBar">
		<view class="marquee">
			<view class="marquee_box" id="marquee_box" :style="{height:noticeheight}">
				<view class="marquee_list" :class="{'marquee_top':animate}">
					<view class="marquee_View" v-for="(item,index) in listCopy" :key="index">
						<view>
							<text class="swiText">{{item}}</text>
						</view>
					</view>
				</view>
			</view>
		</view>
	</view>
</template>
<script>
	export default {
		props: {
			list: {
				type: Array,
				default: []
			},
			// 展示条数
			showNum: {
				type: Number,
				default: 1
			}
		},
		data() {
			return {
				noticeheight: '', //滚动模块高度
				animate: false, //是否滚动 
				listCopy: [...this.list]
			}
		},
		created() {
			//开始滚动
			let num = this.list.length > this.showNum ? this.showNum : this.list.length
			this.noticeheight = num * 100 + 'rpx'
			const timer = setInterval(() => {
				if (this.list.length < 2) { //如果小于3条则不滚动
					clearInterval(timer)
					return
				}
				this.listCopy.push(this.listCopy[0]) //每次滚动在数组最后添加数组第一个元素 然后删除第一个
				this.animate = true
				const timer1 = setTimeout(() => {
					this.listCopy.shift()
					this.animate = false
					clearTimeout(timer1)
				}, 1000)
			}, 2000)
		},
		methods: {}
	}
</script>
<style>
	// 滚动区域
	.marquee {
		width: 100%;
		display: flex;
		/* position: absolute;
      bottom: 1rem;
      left: 0; */
	}

	.marquee_box {
		position: relative;
		width: 100%;
		overflow: hidden;
		display: flex;
	}

	.marquee_list {
		width: 100%;
		display: flex;
		flex-direction: column;
	}

	.marquee_top {
		transition: all 1s;
		margin-top: -98rpx;
	}

	.marquee_View {
		width: 100%;
		display: flex;
	}

	.marquee_View view {
		width: 100%;
		height: 85rpx;
		display: flex;
		flex-direction: row;
		margin: 15rpx 0 0 0;
		padding: 20rpx;
		padding-right: 10rpx;
		padding-left: 10rpx;
		/* box-sizing: border-box; */
		/* align-items: center; */
		/* justify-content: space-between; */
		font-size: 24rpx;
		color: #666;
		/* background-color: rgba(000, 000, 000, 0.5); */
		border-radius: 10rpx;
	}
</style>